Number of ways to arrange 2n queens on an n X n chessboard, with no more than 2 queens in each row, column or diagonal.
A225623
Number of ways to arrange 2n queens on an n X n chessboard, with no more than 2 queens in each row, column or diagonal.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =11a(4) =92a(5) =1097a(6) =19448a(7) =477136a(8) =14244856a(9) =537809179a(10) =24194010708
External references
- oeis: A225623